Plucky little rover

Over at xkcd Randall Munroe comes up with the perfect goodbye to the little Mars rover Spirit as it prepares to hibernate in order to survive the harsh Martian winter. Spirit, along with Opportunity were expected to last 90 days when they landed on the red planet in 2004. Both have been going for over 6 years but Spirit is now mired in sand with an inoperable wheel.

NASA scientists have serious doubts that Spirit will survive even though they’re positioning the rover so that its solar panels can capture as much sunlight as possible.